70040477 has 4 divisors (see below), whose sum is σ = 75428220. Its totient is φ = 64652736.

The previous prime is 70040473. The next prime is 70040483. The reversal of 70040477 is 77404007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77404007 = 757 ⋅102251.

It can be written as a sum of positive squares in 2 ways, for example, as 46430596 + 23609881 = 6814^2 + 4859^2 .

It is a cyclic number.

It is not a de Polignac number, because 70040477 - 2² = 70040473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70040473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2693852 + ... + 2693877.

It is an arithmetic number, because the mean of its divisors is an integer number (18857055).

Almost surely, 2^70040477 is an apocalyptic number.

It is an amenable number.

70040477 is a deficient number, since it is larger than the sum of its proper divisors (5387743).

70040477 is a wasteful number, since it uses less digits than its factorization.

70040477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387742.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 70040477 is about 8369.0188791757. The cubic root of 70040477 is about 412.2079514674.

The spelling of 70040477 in words is "seventy million, forty thousand, four hundred seventy-seven".